I wonder if there is some way of debugging why the driver fails. The drivers are shared from a Windows 2003 R2 server, and our clients are Windows 7 Enterprise x86.
The full URL of the driver is http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=18972&prodSeriesId=431039&prodNameId=431042&swEnvOID=2093&swLang=8&mode=2&taskId=135&swItem=pl-28280-4
The full URL of the driver is http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=18972&prodSeriesId=431039&prodNameId=431042&swEnvOID=2093&swLang=8&mode=2&taskId=135&swItem=pl-28280-4